Electric controller.



W. S. DEEDS. ELECTRIC GONTBGLLER. APPLICATION rum) MB. 1a. 1908.

Patented Dec. 29, 1908.

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ELECTRIC GON'IRGLLBR.

APPLICATION FILED FEB. 18. 1908. 907,752, Patented Dec. 29, 1908.

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W. S. DEEDS.-

ELEOTRIG CONTROLLER.

APPLIOATIOH Hum 1'33. 1a. 1908.

907,752, Patented Dec. 29,1908.

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W. S. DEEDS.

ELEGTBIG CONTROLLER. APPLIGATIION FILED IEB.18."1908.

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THE NDRRIS PETERS '20., WISH'NCTON, B. C

UNITE STATES PATENT FFTQE.

WILLIAM S. DEEDS, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TOJAMES M.

GRAHAM, OF PITTSBURG, PENNSYLVANIA.

ELECTRIC CONTROLLER.

Application filed February 18, 1908.

T all whom it may concern.-

Be it known that 1, WILLIAM S. Dnnns, a citizen of the United States ofAmerica, residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inElectric Controllers, of which the following is a specification,reference being had therein to the accompanying drawing.

This invention relates to electric controllers, and the invention hasfor its object the provision of a novel controller, wherein positive andreliable means are provided for controlling the operation of a motor.

My improved controller is particularly de signed for a wireless armatureinduction motor, forming the subject-matter of a com panion application.

The present invention aims to provide a compact, durable andcomparatively inexensive controller that can be easily manipuated.

The invention will be described in detail, also its application to mymotor, whereby the operation of the controller will be fully understood.

Reference will now be had to the drawings forming a part of thisspecification, wherein:

Figure 1 is a front elevation of my controller, Fig. 2 is a rearelevation of the same, Fig. 3 is a side elevation, Fig. 4 a verticalsectional view, Fig. 5 is a rear elevation of the controller with partsthereof removed, Fig. 6 is a rear elevation of the insulated standardforming part of my controller, and Fig. 7 is a diagrammatic view of thewiring of my controller in connection with my motor.

In the accompanying drawings, 1 designates a standard or slab made of aninsulating material, such as marble. This standard is supported by abase plate 2, and is provided with a central opening 3. The front sideof the standard 1 is provided with a plate of insulation 1 having anopening 5 alining with the opening 3. but of less diam eter. In theopening of the plate 4- is journaled a metallic cylindrical head 6having a bore 7 for a shaft of insulation 8, this shaft having a reducedend 9 at the front side of the controller and a reduced portion 10 ofgreater length. than the reduced portion 9, and extending through theopening 3 to the rear side of the controller. The shaft 8 is fixed inthe cylindrical metallic head 6 by a Specification of Letters Patent.

Patented Dec. 29, 1908.

Serial No. 416,588.

plurality of screws 11. The cylindrical head 6 is constructed of aplurality of circumferentially arranged blocks 12, (see Fig. 5), theseblocks having beveled extensions 13 forming an annular collar around thehead 6. The blocks 12 are insulated from one another, as at 1 1, and theextensions 13 are insulated by V-shaped insertions 15, the area or outerface of said insertions being approximately equivalent to the extensions13, thereby providing an alternate arrangement of the extensions 13 andinsulation insertions 15 upon the periphery of the head 6. Movablymounted upon the head 6 is a collar of insulation 16 having radiallydisposed recesses 17 formed therein for metallic couplers 18, thesecouplers being adapted to bridge two of the extensions 13 or two of theinsulated insertions 15. Surrounding the collar 16 is a plurality ofinsulated metallic segments 19, said segments being secured to thecollar 16 by screws 20 (see Fig. 3). The segments 19, intermediate theirends, are formed with openings 21, these openings alining with openings22 formed in the collar 16 and communicating with the recesses 17thereof. In the openings 21 and 22 are arranged coil springs '23, thesesprings being retained in said openings by set screws 24 adjustablymounted in the openings 21. The object of the springs 23 is to normallymaintain the couplers 18 in frictional engagement with the periphery ofthe head 6. Secured to the insulating collar 16 by screws 25 is a cap ofinsulation 26, said cap embracing the front side of the head 6 and thereduced end 9 of the shaft 8. In the reduced end 9 of the shaft 8 isfixed a screw 27 and movably mounted upon said screw is a reverser lever28. This lever extends upwardly above the standard 1 and is providedwith a suitable handle 29, preferably of-some insulating material. Thehandle 29 is secured to the collar 16 by e screw 30 having a spacersleeve 31. On the front of the standard 1, near the upper end of saidstandard is secured a curved keeper 32 having notches 33 formed thereinto receive the latch 34 of the reverser lever 28. This lever 28 ispreferably made of resilient material to permit its being sprungsufiiciently to withdraw the latch 34 from the notches 33 of the keeper32.

The construction just described comprises the reverser side of mycontroller, and reference will again be had to the detail constructionthereof, when the operation of the controller is described.

Referring now to the rear or speed varying side of the standard 1, saidstandard is provided with a bearing 35 for the reduced portion 10 of theshaft 8. Upon the said reduced portion 10 of the shaft 8 is movablymounted a resilient contact arm 36 and an operating lever 37, said armand said lever being secured together by a set screw 38 and retainedupon the reduced portion of the shaft 8 by a cap 39 and a screw 40. Theresilient arm 36 is provided with a contact block 41, adapted to engagecontacts 42, 43, 44, 45 and 46, suitably secured to the rear face of thestandard 1 near its upper end. Above these contacts'is arranged a keeper47 having notches 48 formed therein for a latch 49 carried by theoperating lever 37.

Upon the rear side of the standard 1 is arranged five binding posts 50,5]., 52, 53 and 54, while the vertical edges of said standard areprovided with binding posts 55, 56, 57, and 58, 59 and 60, the posts 55to 57 inclusive being located upon one edge of the standard 1, and theposts 58 to 69 inclusive upon the opposite edge of said standard.

Upon the base plate 2, at the rear side of the standard 1, is arranged arheostat of a conventional form, the rheostat as illustrated comprisingthree resistance coils 61, 62 and 63. I desire it to be understood thatany number of coils can be used, also any number of contacts at theupper end of the standard 1.

Connected to the binding post 50 is a feed wire 64 leading from asuitable source of electrical energy. The binding post 50 is connectedby a wire 65 to the contact 42. Coil 63 is connected by a wire 66 tobinding post 53, and by a wire 67 to contact 43. Contact 44 is connectedby a wire 68 to binding post 52 and by a wire 69 to the connecting wire70 of the coils 62 and 63. Contact 45 is connected by a wire 71 tobinding post 51 and by a wire 72 to coil 61. Coil 62 is connected by awire 73 to coil 61. Contact 46 is connected by a wire 74 to binding post54 and by a wire 75 to coil 61. Another feed wire 76 connects with thebinding 0st 54.

When the leer 37 is moi'ed to t e first notch of the keeper 47, and thecontact block 41 bridges the contacts 42 and 43, the circuit is asfollows: wire 64 to binding post 50, wire 65 to contact 42, across block41 to contact 43, wire 67 to binding post 53, wire 66 to coil 63, wire70 to coil 62, wires 73 and 72 to coil 61, wire 75 to post 54 and towire 76. The resistance cut in therefore includes the three coils 61, 62and 63. WVhen the lever 37 is moved to the second notch and contacts 42and 44 are bridged, the circuit is from contact 44 through wire 68 topost 52, wire 69 to coil 62, wires 73 and 72 to coils 61, wire 75 topost 54 and then to Wire 76. With the block 41 bridging contacts 42 and45, the circuit is through wire 71, post 51, wire 72 to coil 61, wire 75to post 54 and then to wire 76. When the le'ger 37 is thrown to itslimit to bridge contacts 42 and 46, the circuit is by wire 74 direct tothe post 54 and to wire 76.

Reference will now be had to the referser side of the controller andreferring to Fig. 7 of the drawings, 1 have illustrated diagrammaticallythe re'. erser in connection with my induction motor, but I 113;}; notdeemed it necessary to illustrate diagrammatically the speed varyingside of the controller, as it will be understood that the wires 64 and76 are connected to the feed wires of my motor.

A, B, C, D, E and F represent the stationary electro-magnets of my motorand 22, 26, 27 and 28 the circular wires of the automatic switch of themotor.

24, 37, 36 and 35, 51, 52, 53 and 47 represent the binding posts of themotor.

Assuming that my motor is traveling in the direction of the arrow (Fig.7), the circuit through the electro-magnets B and E, the re/erser andthe automatic switch would be as follows: tarting with a suitable sourceof electrical energy E, E, the circuit is through wire 60 to post 47,wire 45 to electro-magnet B, wire 59 to electro-magnet E, wire 50 topost 53, wire 77 to extension E. Here one of the metallic couplers 18connects said extension E to extension G and the circuit continuesthrough wire 78 to post 35, wire 32, to circular wire 26, wire 79 tocircular wire 22, wire 23 to post 24, and wire 61 to E, E.

The main part of the circuit through electro-magnets D and C isrepresented by a dot and dash line and the extension C is coupled to theextension H in a similar man ner to the extensions E and G.

The principal part of the circuit through the electro-magnets A and F isillustrated by a dotted line, and in a like manner the extension F iscoupled to the extension J.

Now, by referring to Fig. 5 of the drawings, it will be observed thatthree couplers are in use as conductors, while three couplers remainidle or bridge insertions of insulation. To reverse the direction of mymotor, the lever 28 is moved one notch in the keeper 32, which causes acessation in the operation of the motor. Now, upon the lever 28 beingmoved to the third notch, the couplers 18 that serve as conductors nowbecome idle, and the other couplers become the conductors.

The circuit through the electro-magnets B and E is as follows: Startingat E, E the circuit is through wire 60, post 47, wire 45 to magnet B,wire 59 to magnet E, wire 50 to post 53, wire 80 to extension E. Here acoupler connects said extension to extension K, and the circuitcontinues through a wire 81 to extension J, wire 82 to post 36, wire 33to wire 27, wires 88, 22 and 23 to post 24 and wire 61 to E, E. When thecircuit is through the electromagnets D and C a wire 84 is used, whichconnects with extension C, and this extension 0 is coupled to extensionM by wire 85 to extension G, over wire 78 to post 35 etc. to E, E. Whenthe circuit is through A and F, the wire 86 is used, this wireconnecting with extension F, which is coupled to extension 0, and fromthere the circuit passes through wire 87 to extension H, wire 88 to post37, wire 34 to circular wire 28, wire 89 to circular wire 22, etc. to E,E.

When the reverser lever is moved to cause a cessation in the operationof the motor, two of the arms of my wireless armature will be locatedmidway between two sets of electromagnets. For instance, the arms 90will be held by the electro-magnets B and E, while the arms 91 will belocated midway between the electro-magnets A, D, C and F. Immediatelyupon the reverser lever being swung to the third notch, theelectro-magnets A, I), C and F attract the arms 91 in the properdirection in which the motor is operated. It will of course beunderstood that the speed varying side of the controller is used inconnection with the reverser side when the motor is being reversed. Itwill thus be observed that the current flows through the stationaryelectro magnets of the motor in the same direction in both positions ofthe reversing switch, and that the direction of rotation of the armaturedepends upon which of the electro magnets are first energized.

As before stated, the lever 28 is moved one notch and the motor therebybrought to a state of rest; this position of the lever 28 is shown inFig. 1. Assuming that when the motor stops, or is brought to a state ofrest as stated above, that the armature is in the position shown in Fig.7. Now, if the lever 28 be moved to the right (Fig. 1) and, through theelectrical connections heretofore described, the electro-magnets D and Cthereby energized, the armature would immediately be drawn or attractedin the di rection of the arrow shown in Fig. 7. But, if the lever 28should be moved to the left (Fig. 1) and an electric circuit therebyestablished so as to energize magnets A and F, the direction of rotationof the armature. would be reversed, and the armature would travel in thereverse direction to that indicated by the arrow in Fig. 7. It will benoted therefore, that the motor is first brought to a state of rest, andthat the direction of rotation of the armature when the motor is againstarted, depends upon which set of electromagnets are first energized.

As illustrated in Fig. 6, the wires connecting the various extensionsand the binding posts 55 to 60 inclusive are arranged upon or embeddedin the slab or standard 1.

Having now described my invention what 1 claim as new, is

1. A controller embodying an insulated standard, a head mounted in saidstandard and having a plurality of circumferentially arranged insulatedextensions, a shaft mounted in said head, a collar of insulation movablymounted upon said shaft and surrounding said head, a plurality of'spring-pressed couplers mounted in said collar for frictionally engagingsaid head and bridging said extensions, a reverser lever movablyconnected to said shaft and fixed to said collar, a keeper carried bysaid standard for holding said lever to an adjusted position, aplurality of contacts carried by said standard, a resilient arm movablymounted upon said shaft, a contact block carried by said arm forbridging said contacts, a lever for moving said arm, a keeper carried bysaid standard for maintaining said lever to an adjusted position and arheostat in circuit with said contacts, substantially as described.

2. A controller embodying a standard, a head mounted therein and havinga plurality of circumferentially arranged insulated extensions, a shaftmounted in said head, a collar or" insulation movably mounted upon saidsh aft, a plurality of spring-pressed. couplers arranged in said collarfor frictionally engaging said head and bridging said extensions, aplurality of contacts carried by said standard, a movable contact blockfor engaging said contacts, a rheostat in circuit with said contacts,and means movably connected to said shaft for independently moving saidcollar and said contact block.

3. A controller of the type described comprising an insulated standard,a head mounted therein, a plurality of circumferentially arrangedinsulated extensions carried by said head, a collar of insulationmovably mounted upon said head, a plurality of spring-pressed couplersarranged in said collar for bridging said extensions, a plurality ofcontacts carried by said standard, a movable contact block for bridgingsaid contacts, a rheostat in circuit with said contacts, and meanssupported by said head forindependently moving said collar and saidcontact block. I

4. A controller of the type described comprising a standard, a headarranged in said standard, a plurality of circumferentially arrangedinsulated extensions carried by said head, a collar of insulationmovably mounted upon said head, a plurality of spring-pressed couplersarranged in said collar for bridging said extensions, and meanssupported by said head for moving said collar.

5. The combination with a motor having stationary electro-magnets, of aplurality of circumferentially arranged insulated extensions in circuitwith said electro-magnets, a

collar of insulation surrounding said extensions, a plurality ofspring-pressed couplers arranged in said collar for bridging saidextensions, means for moving said couplers to bridge certain extensionsto operate said motor in one direction, and to bridge certain extensionsto operate said motor in. the opposite direction.

6. The combination of a motor, a plurality of circumferentially arrangedinsulated extensions in circuit With said motor, a collar of insulationsurrounding said extensions, spring-pressed insulated couplers arrangedin said collar and adapted to bridge some of said extensions to operatesaid motor in one in the presence of two Witnesses.

direction, and other of said extensions to operate the motor in theopposite direction.

7 The combination of a motor, a plurality of insulated extensions incircuit with said motor, a collar of insulation surrounding saidextensions, and spring-pressed insulated couplers arranged in saidcollar for controlling the direction of operation of said motor.

In testimony whereof I affix my signature WILLIAM S. DEEDS. Witnesses:

MAX H. Snorovrrz, K. H. BUTLER.

